J.C. Wilbur, a millionaire industrialist, buys a remote Island and discovers that dinosaurs still inhabit it. J.C. observes the dinosaurs acting like prehistoric wild animals; "This just won't do." He says to himself and makes the decision to adopt the dinosaurs, educate them and transform them into fine, dignified gentlemen. On Wilbur's deathbed, he asks the dinosaurs to deliver a letter to the only woman he ever loved, a woman named Lilly. The dinosaurs inherit Wilbur’s vast fortune and now as bona fied millionaires they are DISTINGUISHED DINOSAURS ON A QUEST TO FULFILL A PROMISE.